Flow around two tandem cylinders

shantanukale · May 29, 2014, 07:56

Hello...
I am trying to simulate flow around two tandem circular cylinders. I am not able to replicate the results as reported in literature. The results are in well confirmation with the literature when spacing between the cylinders is increased. However, with the same case setup, I am unable to obtain results for less spacing (say spacing between cylinders is 2).
The flow is having a Reynolds number of 100.
Solver used is pisoFoam.
Simulation is 2D and laminar. The schemes being used are linear schemes.
Kindly suggest some measures.

Thank You.

Tushar@cfd · May 30, 2014, 04:24

Quote:

Originally Posted by shantanukale

Hello...
I am trying to simulate flow around two tandem circular cylinders. I am not able to replicate the results as reported in literature. The results are in well confirmation with the literature when spacing between the cylinders is increased. However, with the same case setup, I am unable to obtain results for less spacing (say spacing between cylinders is 2).
The flow is having a Reynolds number of 100.
Solver used is pisoFoam.
Simulation is 2D and laminar. The schemes being used are linear schemes.
Kindly suggest some measures.

Thank You.

Have you checked the mesh dimensions for both the cases?
Can you post comparison plot for your result here?

Akshay · May 30, 2014, 05:47

Hey

Could you post some of your results? Maybe a line plot (velocity ...etc.) ...

shantanukale · May 30, 2014, 07:32

Thank you for your kind reply..
May I know which results should I post? I mean the velocity, pressure colour plots or cl, cd, cp plots?
TD P { margin-bottom: 0cm; direction: ltr; color: rgb(0, 0, 0); }TD P.western { }TD P.cjk { }TD P.ctl { }P { margin-bottom: 0.21cm; direction: ltr; color: rgb(0, 0, 0); }P.western { }P.cjk { }P.ctl {*

Akshay · May 30, 2014, 08:19

Hey

Could you share the mesh (an image) and maybe the contour plots of velocity & pressure? (For both simulations)

Tushar@cfd · May 30, 2014, 09:00

What do you mean by this line..

Quote:

I am not able to replicate the results as reported in literature.

Which result you are talking about that you should mention with comparison plot. Otherwise it is difficult to guess what you are comparing.

May 29, 2014, 07:56	Flow around two tandem cylinders	#1
shantanukale New Member Shantanu Kale Join Date: Dec 2013 Posts: 25 Rep Power: 12	Hello... I am trying to simulate flow around two tandem circular cylinders. I am not able to replicate the results as reported in literature. The results are in well confirmation with the literature when spacing between the cylinders is increased. However, with the same case setup, I am unable to obtain results for less spacing (say spacing between cylinders is 2). The flow is having a Reynolds number of 100. Solver used is pisoFoam. Simulation is 2D and laminar. The schemes being used are linear schemes. Kindly suggest some measures. Thank You.

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May 30, 2014, 05:47		#3
Akshay Member Akshay Kumar Join Date: Aug 2010 Location: India Posts: 84 Rep Power: 15	Hey Could you post some of your results? Maybe a line plot (velocity ...etc.) ...

May 30, 2014, 07:32		#4
shantanukale New Member Shantanu Kale Join Date: Dec 2013 Posts: 25 Rep Power: 12	Thank you for your kind reply.. May I know which results should I post? I mean the velocity, pressure colour plots or cl, cd, cp plots? TD P { margin-bottom: 0cm; direction: ltr; color: rgb(0, 0, 0); }TD P.western { }TD P.cjk { }TD P.ctl { }P { margin-bottom: 0.21cm; direction: ltr; color: rgb(0, 0, 0); }P.western { }P.cjk { }P.ctl {*

May 30, 2014, 08:19		#5
Akshay Member Akshay Kumar Join Date: Aug 2010 Location: India Posts: 84 Rep Power: 15	Hey Could you share the mesh (an image) and maybe the contour plots of velocity & pressure? (For both simulations)